Dr. Ji-Xing Cai Profile

Dr. Ji-Xing Cai

at Changchun Univ of Science and Technology

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Author

Publications (11)

Proceedings Article | 23 December 2023 Paper

Simulation study on laser damage threshold of optical window materials

Jixing Cai, Yunpeng Wang, Tianyu Cui, Yue Zhou, Jingxuan Qiu, Tianyi Cui

Proceedings Volume 12982, 129820P (2023) https://doi.org/10.1117/12.3016378

KEYWORDS: Glasses, Laser damage threshold, Temperature distribution, Laser frequency, Laser glasses, Pulsed laser operation, Laser irradiation, Gaussian beams, Optical simulations, Laser induced damage

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Proceedings Article | 23 December 2023 Paper

Study on the characteristics of plasma generation from transparent optical elements induced by pulse laser

Jixing Cai, Yubo Liu, Yi Li, Shun Li, Baijie Zhang, Le Jin

Proceedings Volume 12982, 129820F (2023) https://doi.org/10.1117/12.3016366

KEYWORDS: Combustion, Pulsed laser operation, Wave propagation, Plasma, Laser irradiation, Laser energy, Plasma generation, Optical components, Silica, Optical simulations

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Proceedings Article | 22 December 2022 Paper

Numerical simulation of the expansion velocity of laser-induced plasma generated in transparent materials

Jixing Cai, Congrui Geng, Hongtao Mao, Hao Yu, Yunpeng Wang

Proceedings Volume 12459, 124590E (2022) https://doi.org/10.1117/12.2656290

KEYWORDS: Combustion, Plasma, Pulsed laser operation, Absorption, Laser processing, Laser applications, Wave propagation, Optical simulations, Laser energy, Light

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Proceedings Article | 22 December 2022 Paper

Research on plasma characteristics of fused silica induced by millisecond pulsed laser

Jixing Cai, Zequn Zhang, Hao Yu, Yunpeng Wang, Hongtao Mao

Proceedings Volume 12459, 124590O (2022) https://doi.org/10.1117/12.2656288

KEYWORDS: Combustion, Pulsed laser operation, Plasma, Wave propagation, Laser energy, Silica, Optical components, Laser irradiation, Optical simulations, Temperature metrology

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Proceedings Article | 24 November 2021 Paper

Simulation study on the cleaning threshold of continuous laser removal of various coated aluminum alloy substrates

Xudong Sun, Guangyong Jin, Jixing Cai, Boshi Yuan

Proceedings Volume 12060, 120600Y (2021) https://doi.org/10.1117/12.2606515

KEYWORDS: Laser damage threshold, Optical simulations, Laser applications, Aluminum, Temperature metrology, Laser processing, Laser irradiation, Finite element methods

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Proceedings Article | 24 November 2021 Paper

Simulation study on rubber removal by continuous nanosecond combined laser

Yubo Liu, Jixing Cai, Guangyong Jin

Proceedings Volume 12060, 120601V (2021) https://doi.org/10.1117/12.2607122

KEYWORDS: Optical simulations, Pulsed laser operation, Laser energy, Temperature metrology, Adhesives, Thermal effects, Energy efficiency, Absorption, Roads

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Proceedings Article | 15 October 2015 Paper

Thermal effects of single-pulse laser irradiation on fused silica

Ji-xing Cai, Xu Qu, He Li, Guang-yong Jin

Proceedings Volume 9671, 96711C (2015) https://doi.org/10.1117/12.2199892

KEYWORDS: Laser irradiation, Finite element methods, Thermal effects, Silica, Pulsed laser operation, Laser applications, Temperature metrology, Glasses, Laser energy, Analytical research

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Proceedings Article | 18 December 2014 Paper

Study and design of beam expander with wide aperture

Ming Guo, Guangyong Jin, Jixing Cai, Wei Zhang, Zhi Wei

Proceedings Volume 9295, 92950T (2014) https://doi.org/10.1117/12.2073035

KEYWORDS: Beam expanders, Laser systems engineering, Image quality standards, Objectives, Laser applications, Collimation, Zemax, Image quality, Laser processing, 3D modeling

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In order to improve the capacity of beam collimation for laser beam expander, it is necessary to design a more reasonable and feasible structure of beam expander system. Laser beam expander is used to compress the laser divergence angle, in order to reduce the energy losing in long distance scanning acquisition system. This paper introduces the working principle and design idea of the laser beam expander, the collimating multiplying power focal length and the collimated magnification formula of expander main, secondary mirror. According to the third-order aberration theory, Considering the spherical aberration, sine difference and divergence angle, the reasonable analysis of optical path, ZEMAX optical design software was used to design large-diameter laser beam expander and analysis and optimize, And given the actual design data and results. Display the maximum optical path difference is ±0.01λ of the main light ray and each light ray. To combination the rear- group objective lens of Galileo and Kepler beam expander, a large-diameter(1.475m) laser beam expander was designed with 0.2m in the diameter, 1/2m in the relative caliber. In the objective lens System, a high-order aspherical was used to the aberration of extra-axial point. we can see that the image quality is close to the diffraction limit from the curves of wavefront. In addition to improve image quality effectively, the system has the characteristics of simple structure, less costly and less design difficulty to compare with the other beam expanding system. And make the output beam's divergence angle smaller, energy density higher, and the beam quality has been greatly improved. The results show that the beam expander is fully meet the design requirements, the use effect is good. Design and research of laser beam expanding system not only improves the quality of the laser beam in the laser system, but also enlarge the application field of laser technology in photoelectric system.

Proceedings Article | 18 December 2014 Paper

Thermal stress simulation of multi-pulse laser irradiate on fused silica

Ji-xing Cai, Guang-yong Jin, Ming Guo, Hua-dong Yu

Proceedings Volume 9295, 92950O (2014) https://doi.org/10.1117/12.2072872

KEYWORDS: Silica, Pulsed laser operation, Optical simulations, Finite element methods, Laser processing, Temperature metrology, Laser applications, Laser energy, Distortion, Numerical simulations

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Proceedings Article | 17 September 2013 Paper

Numerical study of thermal stress damage in dielectric film by long-pulse laser

Ji-xing Cai, Guang-yong Jin, Juan Bi, Gui-bo Chen, Ye Zhang

Proceedings Volume 8904, 89040M (2013) https://doi.org/10.1117/12.2032890

KEYWORDS: Dielectrics, Laser energy, Laser irradiation, Thin films, Laser applications, Optical simulations, Pulsed laser operation, Absorption, Thermal modeling, Systems modeling

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In this paper, we study and establish the theoretical model of thermal stress damage of dielectric film in film/substrate systems caused by long-pulse laser, based on which transient distributions of temperature field and thermal stress field are simulated using the finite element method(FEM) and then analyze the mechanism of the damage. In accordance with the basic equation of heat conduction equation and thermal stress equation, the physical model of dielectric film and the substrate transient temperature field and thermal stress field is developed with the assumption that the dielectric film and the substrate are isotropic and their thermal parameters do not change with temperature. On the foundation of theoretical analysis, transient of temperature field in dielectric film in film/substrate systems under long-pulse laser irradiation is simulated and calculated. The numerical results indicate that great temperature gradient exists in dielectric film and substrate in radial direction but smaller one exists in axial direction. When the laser power density is increasingly larger, the temperature gradient in radial direction is larger and the temperature in the center of the film is higher. Transient thermal stress field in dielectric film in film/substrate systems under long-pulse laser irradiation is simulated. Numerical results show that, the damage to the dielectric film caused by long-pulse laser is mainly due to thermal stress damage process which circumferential stress acts a primary role in. Such damage is a final result of the substrate being under thermal stress. For film/substrate system, the damage under long-pulse laser radiation starts from the substrate. When the laser power density is increasingly larger, the dielectric film is more vulnerable to damage and damage zone is greater. The result of this paper provides theoretical foundation not only for research of theories of dielectric film and substrate thermal stress damage and its numerical simulation under laser radiation but also for long-pulse laser technology and widening its application scope.

Proceedings Article | 8 September 2011 Paper

Study of SF6 gas decomposition products based on spectroscopy technology

Ji-xing Cai, Yan-xiang Na, Wei-yuan Ni, Guo-wei Li, Ke-cheng Feng, Gui-cai Song

Proceedings Volume 8193, 81932K (2011) https://doi.org/10.1117/12.900483

KEYWORDS: Dielectrics, Electrons, Device simulation, Fluorine, Infrared spectroscopy, Chemical species, Absorbance, Statistical analysis, Spectroscopes, Gases

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Showing 5 of 11 publications

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